netdev - Re: [PATCH v1 iproute2-next 2/3] rdma: print driver resource attributes

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Message-ID: <20180515144420.GB5615@ziepe.ca>
Date:   Tue, 15 May 2018 08:44:20 -0600
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Steve Wise <swise@...ngridcomputing.com>
Cc:     'Leon Romanovsky' <leon@...nel.org>, dsahern@...il.com,
        stephen@...workplumber.org, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org
Subject: Re: [PATCH v1 iproute2-next 2/3] rdma: print driver resource
 attributes

On Tue, May 15, 2018 at 09:31:27AM -0500, Steve Wise wrote:
> > cap net admin is not high enough privledge to see unhashed kernel
> > pointers. CAP_RAW_IO? Or follow what printk does?
> > 
> 
> Do you mean CAP_NET_RAW?  Here's the comments for it:

Nope..

> Func restricted_pointer() from lib/vsprintf.c uses CAP_SYSLOG.  The comment for CAP_SYSLOG:

Yikes, yes, that is probably the required logic here, including the
kptr_restrict = 0 thing

Jason